Connection for the bits of smoking pipes



July 21, 1953 J. GEvlRMAN CONNECTION FOR THE BITS 'OF SMOKING PIPEs lIllr Filed Sept. 30, 1949 INVENTOR. /um

Patented July 21,*1953 3,646,052... l CONNECTION Fon THE BITS. 0F.SMOKINGPIPESI Jerome Gevi-rina'n, Brooklyn, N. vY. Application September30,1949, Serial No. 118,951

The present invention relates to a smokers pipe which generally consistof a bowl and bowl stem, a bit having a mouthpiece section at its end,andfmeans for connecting the bittoliihbowl stem.

The object of the present invention is to provide a `.smokers pipeconsisting of a bowl and bowl stem, a bit, and threaded connectionsintermediate the bit and the bowl stem enabling a tight t between thesaid members and at the same time enabling the bit to be turned in agiven direction, vwithout changing the tight i'lt between the bit andthe bowl stem, in order that the bit `may be accurately positioned, withthe flattened portion of the bit disposed `at a right angle to the axisof the bowl.

The specic object of the invention is to provide a smokers pipe of thestated character which possesses a predetermined frictional resistancebetween the bit and the bowl stem, which will maintain that condition,which will be capable of easy assembly, and which 4will be of low cost.

The invention will be described with reference t relatively to the bowlstem; j

Figure 2 is a View similar to Fig. 1 showing the bit having been turnedto a tight fit relatively to the bowl stem and yet out of properposition, requiring 90 rotation and to the position of Figure l forproper alignment.

Figure 3 is an enlarged fragmentary longitudinal section taken on theline 3-3, Figure l;

Figure 4 is a composite enlarged view showing the bit and bowl stemconnecting elements separated and in proper line position for assembly.

Referring to the drawings, I have shown at l the bowl of the smokerspipe it having a bowl stem 2, the bit being indicated at 3.

Referring to Figure 3, it will be seen that the 'bowl stem is formedwith a chamber 4, which receives the connector elements 5 and 6. Theconnector element or tube 5 is an externally threaded tube having acylindrical portion, the latter having a smooth surface and a knurledhead 1. The connector element 6 is a smoothsurfaced sleeve which isthreaded on to the end of the connector element 5. It is preferred thatthe said sleeve be formed of a relatively rm material such as hardrubber or a plastic composition. It will have a smooth surface, and atthe same time it will bear upon `the Wall of chamber 4 with a desiredfriction.

l ironing. (cifrar- 225) 'Ihe connector element 5 is apertured to form-asmall passageway, and the knurled head IY is Apressed into a chamberformed in the end of the Therefore continued clockwise` movement of theconnector element 5 will compel rotation of the sleeve. The forcerequired to effect such continued rotation of the sleeve will, ofcourse, be substantially greater than that required in unthreading theconnector element 5 from the sleeve. Therefore in disassembling the bitfrom the bowl stem, counterclockwise rotation of the bit will withdrawthe connector element 5 from sleeve 6, the sleeve remaining in positionwithin chamber 4.

A threaded member is employed to serve as a back-up for the sleeve. Tothat end I have provided an externally threaded member 8 having aflanged head 9. Thus when sleeve 6 has been pressed into chamber 4,member 8 may be threadedinto that chamber, as shown in Fig. 3, untilflange 9 is brought into abutment with the end of the bowl stem. At thispoint the bit, with the projected externally threaded and shoulderedtube 5 will be brought into position and the tube threaded into thesleeve 6, preferably by clockwise rotation, until the point is reachedat which relative rotation of sleeve 6 and tube 5 stops, and the tubeand sleeve virtually become so interengaged as to provide, for allpractical purposes, a single member which can be rotated by overcomingthe frictional resistance between sleeve 6 and the wall of the chamberin the bowl stem indicated at 4.

It is not essential that tube 5 be threaded in friction sleeve 6.

The formation of annular shoulder 1:1: on the tube 5 has special utilityin that it provides a stop or abutment between the tube and the frictionsleeve 6.

'Ihe alignment between the bit and the bowl stem is eected according tothis invention by inserting the knurled head 1 into the bit 3, next thethreaded member 8 is pushed into place onto the smooth portion ofconnector element 5, then the rubber sleeve 6 screwed onto the threadeduntil the desired alignment is attained. When. the bit and connectorelement 5 are disconnected as a unit from the bowl stem 2, thegsleeveY6.1is re tained within the stem 2 by the threaded-meurber 8.

ofY the elements constituting the embodiment illustrated in thedrawings, without departing` from the spirit of the invention.

Having described-my invention, whati-I claim and Vdesire to A secure byLetters P'atent-is'1- as ollo'wszl lfA-smokerls pipe comprising'alf-bowl, a bowl stem;1 abit; fa rst cylindrical connector elementlcomprising--a threaded vins'ertable portion termi natingA at a`rshoulderl and a cylindrical portion fha-ving a 'smooth -portion andla'knurled head,

saidl headl having adiametersli'ghtly greater than that vofchamberlocated in-said bit whereby heating or-the--bit'eiects expansionofi the chamber wallseallowingdnsertionof the knurled headportionto'`eie"cta permanently immovable grp afsecond cylindrical'corinectorelement of expandable fmfateriaL having l fanVA internally threaded"bore, and' adapted to ybe insertedin a chamberflooated in saidstemandadapted to fric- 4, tionally engage the wall of said stem chamber,and an externally threaded intermediate third cylindrical connectorelement having a `smooth bore and a flange and adapted to be screwedinto 5 the bowl stem; said first connector element being insertedthrough the third connector element, with its smooth cylindrical portionengaging the Y smooth bore Wall of the said third connector elementandiinto the internally threaded bore of l0 said second connectorelement; said second connector element being disposed in screw threadedrelationship to the screw threads of said rst x onnectorelement, saidsecond connector ele- L L ment'being retained within the stem by saidthird 15 .connector Aelement when the bit and the rst It will beunderstood that vai^1ous`mod1ca= tions may be made in the form andarrangement 20 second connector element is of hard rubber.

JEROME GEyIRMAN.

' Rererames'.cited inthernie of this patent UNTTED jSTATES PATENTSNumber y Name Date 652,789- yl -.ei`telt,=,Jr July 3, 1900 688/107kGlazier et al; Dec. l0, 1901 30 791,063v Wichman et al. May 30, 19051,284,612 f, Cunningham Nov. 12, 1918 v2,326,658 Koenigsamen 1 Aug. 10,1943 2,443,108 Lavietes- June 8, 1948 FQRETGN vPATENTS Number Country fDate `France 11---'. Nov. 4, 1931

